How this instrument works
Net worth is the one number a balance sheet reduces to: everything a person or household owns, valued at today's prices, minus everything they owe. The subtraction is deliberately plain — no weighting, no adjustment for how quickly an asset could be sold, no distinction between a paid-off car and a brokerage account. That simplicity is the point: net worth is a snapshot of accumulated wealth at one instant, not a measure of income or how comfortable the next twelve months will feel.
The figure shows up wherever someone needs a whole-balance-sheet number rather than a slice of it. The Federal Reserve's Survey of Consumer Finances publishes median and mean household net worth by age bracket every three years, and financial planners lean on the same subtraction to track progress toward a retirement goal year over year. A narrower, formal version even appears in securities law: the SEC's accredited-investor net worth test asks an individual to clear $1 million, but explicitly strips out the value of a primary residence first — a deliberate divergence from the everything-counts version computed here, built to keep home-price swings from qualifying someone who couldn't actually deploy that equity into a private offering.
The arithmetic trusts whatever gets typed into each field, and that is its biggest limitation. A home, a private business stake, or a collection of collectibles has no single settled price until it actually sells, so a 'total assets' figure often blends hard numbers like a bank balance with estimates that could be off by a meaningful margin. It is also easy to double-count a mortgage by accident: list a home at full market value as an asset and its remaining loan balance as a liability, or list only the equity as an asset and leave the mortgage out entirely — pick one convention, because mixing them either hides debt or invents it.
- Enter Total assets, $ — the current value of everything you own: home equity or market value, retirement and investment accounts, savings, and vehicles.
- Enter Total liabilities, $ — everything you owe: mortgage balance, auto and student loans, and credit card balances.
- Read Net worth, $ — the instrument subtracts liabilities from assets the instant either figure changes.
- Recheck the figure after a major purchase, a market swing, or a loan payoff, since either side can move on its own.
Worked example — $500,000 against $200,000 owed
Take a household with Total assets, $ of 500,000 — spread across home equity, retirement accounts, savings, and taxable investments — and Total liabilities, $ of 200,000 covering a mortgage balance, an auto loan, and a credit card balance carried month to month. Net worth, $ works out to 500,000 minus 200,000, or $300,000, recalculated the instant either number changes.
For scale, the Federal Reserve's 2022 Survey of Consumer Finances put median family net worth at $192,900, so $300,000 sits above the typical household while remaining far below the mean of just over $1 million, a figure a small share of very wealthy households pulls sharply upward. Push liabilities to 650,000 instead — a fresh mortgage and a student loan stacked on the original figures — and the same 500,000 in assets nets out to −$150,000, a common phase for younger households whose assets haven't yet caught up with the debt taken on to acquire them.
Questions
Should I use my home's market value or just my home equity?
Pick one and stay consistent. List the home's full market value under Total assets, $ and its remaining mortgage balance under Total liabilities, $ — or list only your equity (value minus mortgage) as an asset and leave the mortgage out of liabilities entirely. Mixing the two either hides real debt or subtracts the same mortgage twice.
What counts as a good net worth for my age?
There is no single right answer, since it depends on income, region, and family size, but the Federal Reserve's Survey of Consumer Finances publishes median and mean net worth by age bracket every three years as a public reference point. The gap between the two is large — a small share of very wealthy households pulls the mean well above what a typical household holds — so median is the more representative comparison.
How is net worth different from income?
Income is a flow measured over a period — a salary paid monthly, or a year's earnings — while net worth is a snapshot of what has been kept, taken at a single moment. A high earner who spends everything can have a low or negative net worth, and someone with modest income who saves steadily for decades can build a large one; the two numbers answer different questions.
Can net worth be negative?
Yes, whenever Total liabilities, $ exceeds Total assets, $. A household with $150,000 in assets against $200,000 of liabilities has a net worth of −$50,000 — common for younger households carrying a new mortgage or student loans that outweigh what they have saved so far, and not automatically alarming if income and time are still ahead of them.
Do retirement accounts count even though I can't spend them without a penalty?
Yes — total net worth counts every asset at its current value, including retirement accounts, regardless of how easily it converts to spendable cash. That is a different question from liquidity: a figure built only from cash and penalty-free accounts would exclude retirement savings entirely and produce a smaller, narrower number than the total computed here.
References
Read this first: This instrument shows arithmetic, not advice. Real offers add fees, taxes and terms that vary by lender and place — verify the figures against your actual paperwork before deciding anything.